[1] Osped Brunico, Rheumatol, Brunico, Italy
[2] Med Univ Graz, Rheumatol & Clin Immunol, Graz, Austria
[3] Leiden Univ Med Ctr LUMC, Rheumatol, Leiden, Netherlands
[4] Zuyderland MC, Rheumatol, Heerlen, Netherlands
[5] Ctr Hosp Univ Lisboa Norte, Rheumatol, Lisbon, Portugal
[6] Univ Leeds, Leeds Inst Rheumat & Musculoskeletal Med, Leeds, W Yorkshire, England
[7] Univ Med Ctr Wuerzburg, Diagnost & Intervent Radiol, Wurzburg, Germany
[8] Univ Hosp Gasthuisberg, Gen Internal Med Dept, Leuven, Belgium
[9] Karolinska Univ Hosp, Rheumatol, Stockholm, Sweden
[10] Karolinska Inst, Med, Stockholm, Sweden
[11] Hacettepe Univ, Internal Med, Ankara, Turkiye
[12] None, Leicester, Leics, England
[13] Univ Barcelona, Autoimmune Dis, Inst Invest Biomed August Pi & Sunyer IDIBAPS, Barcelona, Spain
[14] Hosp Gen Univ Gregorio Maranon, Rheumatol, Madrid, Spain
[15] Southend Univ Hosp, Mid & South Essex NHS Fdn Trust, Rheumatol, Southend On Sea, England
[16] Aarhus Univ Hosp, Rheumatol, Aarhus, Denmark
[17] Reg hosp Horsens, Med, Horsens, Denmark
[18] La Paz Univ Hosp, Rheumatol, Madrid, Spain
[19] Marmara Univ, Sch Med, Div Rheumatol, Dept Internal Med, Istanbul, Turkiye
[20] Med Univ Innsbruck, Clin Div Internal Med 2, Internal Med, Innsbruck, Austria
[21] Univ Med Ctr Ljubljana, Rheumatol, Ljubljana, Slovenia
[22] Cochin Hosp, Rheumatol, Paris, France
[23] Paris Cite Univ, Ctr Res Epidemiol & Stat CRESS, INSERM U1153, Paris, France
[24] Univ Hosp Bonn, Clin Internal Med Oncol Rheumatol & Clin Immunol, Bonn, Germany
[25] Univ Bern, Univ Hosp Bern, Inselspital, Rheumatol & Immunol, Bern, Switzerland
[26] Univ Med Ctr Groningen, Nucl Med & Mol Imaging, Groningen, Netherlands
[27] Univ Twente, Biomed Photon Imaging, Enschede, Netherlands
[28] Immanuel Krankenhaus Berlin Buch, Med Ctr Rheumatol Buch, Berlin, Germany